package com.itWaiLong.Interceptor;

import com.itWaiLong.Utils.JWTUtils;
import com.itWaiLong.Utils.ThreadLocalUtil;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;

import java.util.Map;

@Component
public class LoginInterceptor implements HandlerInterceptor {

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {

        //获取token
        String token = request.getHeader("Authorization");

        //验证token
        try{
            Map<String , Object> map = JWTUtils.getClaims(token);

            /*验证通过*/
            ThreadLocalUtil.setThreadLocal(map);

            return true;
        }
        catch(Exception e){
            response.setStatus(404);
            return false;
        }
    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        ThreadLocalUtil.removeThreadLocal();
    }
}
